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62f9bcf2b4
In the Hyper-V drivers we need to allocate buffers shared between the host and guest. This memory has been allocated with bus_dma, however it doesn't use this correctly, e.g. it is missing calls to bus_dmamap_sync. Along with this on arm64 we need this memory to be mapped with the correct memory type that bus_dma may not use. Switch to contigmalloc to allocate this memory as this will correctly allocate cacheable memory. Reviewed by: Souradeep Chakrabarti <schakrabarti@microsoft.com> Sponsored by: Arm Ltd Differential Revision: https://reviews.freebsd.org/D40227
177 lines
5.6 KiB
C
177 lines
5.6 KiB
C
/*- SPDX-License-Identifier: BSD-2-Clause
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* Copyright (c) 2022 Microsoft Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _HYPERV_COMMON_REG_H_
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#define _HYPERV_COMMON_REG_H_
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#include <sys/param.h>
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#include <sys/systm.h>
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#define MSR_HV_GUESTID_BUILD_MASK 0xffffULL
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#define MSR_HV_GUESTID_VERSION_MASK 0x0000ffffffff0000ULL
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#define MSR_HV_GUESTID_VERSION_SHIFT 16
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#define MSR_HV_GUESTID_OSID_MASK 0x00ff000000000000ULL
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#define MSR_HV_GUESTID_OSID_SHIFT 48
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#define MSR_HV_GUESTID_OSTYPE_MASK 0x7f00000000000000ULL
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#define MSR_HV_GUESTID_OSTYPE_SHIFT 56
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#define MSR_HV_GUESTID_OPENSRC 0x8000000000000000ULL
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#define MSR_HV_GUESTID_OSTYPE_LINUX \
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((0x01ULL << MSR_HV_GUESTID_OSTYPE_SHIFT) | MSR_HV_GUESTID_OPENSRC)
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#define MSR_HV_GUESTID_OSTYPE_FREEBSD \
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((0x02ULL << MSR_HV_GUESTID_OSTYPE_SHIFT) | MSR_HV_GUESTID_OPENSRC)
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#define MSR_HV_HYPERCALL 0x40000001
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#define MSR_HV_HYPERCALL_ENABLE 0x0001ULL
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#define MSR_HV_HYPERCALL_RSVD_MASK 0x0ffeULL
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#define MSR_HV_HYPERCALL_PGSHIFT 12
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#define MSR_HV_REFERENCE_TSC 0x40000021
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#define MSR_HV_REFTSC_ENABLE 0x0001ULL
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#define MSR_HV_REFTSC_RSVD_MASK 0x0ffeULL
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#define MSR_HV_REFTSC_PGSHIFT 12
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#define MSR_HV_SCTRL_ENABLE 0x0001ULL
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#define MSR_HV_SCTRL_RSVD_MASK 0xfffffffffffffffeULL
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#define MSR_HV_SIEFP_ENABLE 0x0001ULL
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#define MSR_HV_SIEFP_RSVD_MASK 0x0ffeULL
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#define MSR_HV_SIEFP_PGSHIFT 12
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#define MSR_HV_SIEFP_PGMASK (~0ULL << MSR_HV_SIEFP_PGSHIFT)
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#define MSR_HV_SIMP_ENABLE 0x0001ULL
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#define MSR_HV_SIMP_RSVD_MASK 0x0ffeULL
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#define MSR_HV_SIMP_PGSHIFT 12
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#define MSR_HV_SIMP_PGMASK (~0ULL << MSR_HV_SIMP_PGSHIFT)
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#define MSR_HV_SINT_VECTOR_MASK 0x00ffULL
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#define MSR_HV_SINT_RSVD1_MASK 0xff00ULL
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#define MSR_HV_SINT_MASKED 0x00010000ULL
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#define MSR_HV_SINT_RSVD2_MASK 0xfffffffffffc0000ULL
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#define MSR_HV_SINT_RSVD_MASK (MSR_HV_SINT_RSVD1_MASK | \
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MSR_HV_SINT_RSVD2_MASK)
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#define MSR_HV_STIMER0_CONFIG 0x400000b0
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#define MSR_HV_STIMER_CFG_ENABLE 0x0001ULL
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#define MSR_HV_STIMER_CFG_PERIODIC 0x0002ULL
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#define MSR_HV_STIMER_CFG_LAZY 0x0004ULL
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#define MSR_HV_STIMER_CFG_AUTOEN 0x0008ULL
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#define MSR_HV_STIMER_CFG_SINT_MASK 0x000f0000ULL
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#define MSR_HV_STIMER_CFG_SINT_SHIFT 16
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#define MSR_HV_STIMER0_COUNT 0x400000b1
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/*
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* CPUID leaves
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*/
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#define CPUID_LEAF_HV_MAXLEAF 0x40000000
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#define CPUID_LEAF_HV_INTERFACE 0x40000001
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#define CPUID_HV_IFACE_HYPERV 0x31237648 /* HV#1 */
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/* EAX: features include/hyperv.h CPUID_HV_MSR */
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/* ECX: power management features */
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#define CPUPM_HV_CSTATE_MASK 0x000f /* deepest C-state */
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#define CPUPM_HV_C3_HPET 0x0010 /* C3 requires HPET */
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#define CPUPM_HV_CSTATE(f) ((f) & CPUPM_HV_CSTATE_MASK)
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/* EDX: features3 */
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#define CPUID3_HV_MWAIT 0x0001 /* MWAIT */
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#define CPUID3_HV_XMM_HYPERCALL 0x0010 /* Hypercall input through
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* XMM regs */
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#define CPUID3_HV_GUEST_IDLE 0x0020 /* guest idle */
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#define CPUID3_HV_NUMA 0x0080 /* NUMA distance query */
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#define CPUID3_HV_TIME_FREQ 0x0100 /* timer frequency query
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* (TSC, LAPIC) */
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#define CPUID3_HV_MSR_CRASH 0x0400 /* MSRs for guest crash */
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#define CPUID_LEAF_HV_LIMITS 0x40000005
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#define CPUID_LEAF_HV_HWFEATURES 0x40000006
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/*
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* Hyper-V Monitor Notification Facility
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*/
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struct hyperv_mon_param {
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uint32_t mp_connid;
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uint16_t mp_evtflag_ofs;
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uint16_t mp_rsvd;
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} __packed;
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/*
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* Hyper-V message types
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*/
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#define HYPERV_MSGTYPE_NONE 0
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#define HYPERV_MSGTYPE_CHANNEL 1
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#define HYPERV_MSGTYPE_TIMER_EXPIRED 0x80000010
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/*
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* Hypercall status codes
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*/
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#define HYPERCALL_STATUS_SUCCESS 0x0000
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/*
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* Hypercall input values
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*/
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#define HYPERCALL_POST_MESSAGE 0x005c
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#define HYPERCALL_SIGNAL_EVENT 0x005d
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/*
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* Hypercall input parameters
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*/
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#define HYPERCALL_PARAM_ALIGN 8
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#if 0
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/*
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* XXX
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* <<Hypervisor Top Level Functional Specification 4.0b>> requires
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* input parameters size to be multiple of 8, however, many post
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* message input parameters do _not_ meet this requirement.
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*/
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#define HYPERCALL_PARAM_SIZE_ALIGN 8
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#endif
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/*
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* HYPERCALL_POST_MESSAGE
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*/
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#define HYPERCALL_POSTMSGIN_DSIZE_MAX 240
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#define HYPERCALL_POSTMSGIN_SIZE 256
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struct hypercall_postmsg_in {
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uint32_t hc_connid;
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uint32_t hc_rsvd;
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uint32_t hc_msgtype; /* HYPERV_MSGTYPE_ */
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uint32_t hc_dsize;
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uint8_t hc_data[HYPERCALL_POSTMSGIN_DSIZE_MAX];
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} __packed;
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CTASSERT(sizeof(struct hypercall_postmsg_in) == HYPERCALL_POSTMSGIN_SIZE);
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/*
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* HYPERCALL_SIGNAL_EVENT
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*
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* struct hyperv_mon_param.
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*/
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#endif /* i!__HYPERV_COMMON_REG_H__ */
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